SOLVED: Video playback in slow-mo

[MrFabou]

I'm using Jellyfin 10.8.13 as a Linux Container in Proxmox with a i5 7500t and it's iGPU.

It work's fine with 1080p content, but if I try to watch HEVC 4K Movies, it only works on my native 4K TV and PC with Google Chrome, not on a 1080p Display with a Google Chromecast 4K.

If I change the bandwidth to 3-5mb/s it works fine. With set to "automatic" the video playback is in slow-mo and the audio is playing on 100%

I checked the logs and got a warning:

Code:

[2024-03-19 15:50:16.811 +01:00] [WRN] Slow HTTP Response from "IPADRESS/videos/xxxx/hls1/main/214.ts?DeviceId=xxxxxf&MediaSourceId=xxxx&VideoCodec=hevc,h264,hevc&AudioCodec=ac3&AudioStreamIndex=1&VideoBitrate=8181989&AudioBitrate=448000&AudioSampleRate=48000&MaxFramerate=23.976025&PlaySessionId=xxxx&api_key=xxx&SubtitleMethod=Encode&RequireAvc=false&Tag=xxxxxx&SegmentContainer=ts&BreakOnNonKeyFrames=False&hevc-level=123&hevc-videobitdepth=10&hevc-profile=main10&hevc-audiochannels=6&aac-audiochannels=8&TranscodeReasons=ContainerBitrateExceedsLimit&runtimeTicks=6420000000&actualSegmentLengthTicks=30000000" to "IPADRESS" in 0:00:00.7074261 with Status Code 200

Heres my FFmpeg Log (partially): 

Code:

Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> hevc (hevc_qsv))
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
Output #0, hls, to '/var/lib/jellyfin/transcodes/xxxxx.m3u8':
  Metadata:
    encoder        : Lavf59.27.100
  Stream #0:0: Video: hevc (hvc1 / 0x31637668), qsv(tv, bt709, progressive), 3840x2160 [SAR 1:1 DAR 16:9], q=2-31, 7856 kb/s, 23.98 fps, 90k tbn (default)
    Metadata:
      encoder        : Lavc59.37.100 hevc_qsv
    Side data:
      cpb: bitrate max/min/avg: 7856364/0/7856364 buffer size: 15712728 vbv_delay: N/A
  Stream #0:1: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s (default)
frame=    1 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=  0x   
frame=  38 fps=0.0 q=-0.0 size=N/A time=00:00:01.50 bitrate=N/A speed=2.63x   
frame=  72 fps= 67 q=-0.0 size=N/A time=00:00:02.78 bitrate=N/A speed=2.58x   
[hls @ 0x560c779bf6c0] Opening '/var/lib/jellyfin/transcodes/xxxxx.ts' for writing
frame=  108 fps= 68 q=-0.0 size=N/A time=00:00:04.28 bitrate=N/A speed=2.71x   
frame=  144 fps= 69 q=-0.0 size=N/A time=00:00:05.76 bitrate=N/A speed=2.76x   
[hls @ 0x560c779bf6c0] Opening '/var/lib/jellyfin/transcodes/xxxxx

Hope you can help me out here,

greetings